opus 90w Vs. 150w

hey guys,

sorry for the noob question. is the only difference here the amount of power and thus how many devices on your pc u can run and also the length of time the computer can be left on in hibernation before it shuts down?

Generally if you are using an ITX motherboard go with the 90 watt. If you have a full sized ATX motherboard then go with the 150 watt. List your componients and I can give a more accurate recommendation.

It can say indefinitely in hibernation because that is a full shutdown and doesn’t use any standby power.

There is one other 'slight' difference. The 150W ALWAYS provides standby power on the +5VSBY output--consistent with ATX specifications. Depending on your configuration this can cause problems and/or eventual battery drain. The 90W let's you enable/disable this feature with a jumper.

I believe your USB devices could still draw a little power, so the opus could still be supplying a little voltage even when the PC has shut down. The Opus is supposed to shut down completely once your battery drops to a certain level so as not to drain the battery. Some has reported trouble with this feature though. I suspect this is uncommon though.

As a general rule, unplug the opus if you're leaving the car for an extended period of time.

I believe your USB devices could still draw a little power, so the opus could still be supplying a little voltage even when the PC has shut down. The Opus is supposed to shut down completely once your battery drops to a certain level so as not to drain the battery. Some has reported trouble with this feature though. I suspect this is uncommon though.

As a general rule, unplug the opus if you're leaving the car for an extended period of time.

That would be the standby power you are talking about. With the 90 watt OPUS it can be disabled. If it is disabled the OPUS won't drain your battery if left for a long period of time.